The Hull Truth - Boating and Fishing Forum

Go Back   The Hull Truth - Boating and Fishing Forum > BOATING FORUMS > The Boating Forum
Search

Notices

Random Quote: Use the Power of THT!!!
Reply
 
Thread Tools Search this Thread
Old 08-23-2006, 04:58 PM
  #1    
Senior MemberCaptains Club Member
 
Join Date: Aug 2006
Location: Upper Chesapeake
Posts: 429
Default Aerator vs Livewell pump?

Could someone explain the difference between an aerator and a Livewell pump. They look like the same thing to me, except for the aerators (looking at the shur-flo Piranha series) have a thru-hull tube, the pumps dont. Why doesnt the pump have the thru-hull? The following is a question i posted to another forum (Great Grady). But after looking closely at the pumps today, i realize i need to backup a step.

I would like to install a livewell pump, but I am not really sure how to do it, or what the end product is supposed to look like. I am thinking about buying the Piranha pump they sell at Boat US. It is a simple pump with a single inlet & outlet. I have an idea of how I will install it, but if anyone has some photo's or a diagram of how it is properly done, i would greatly appreciate it. Here's what I'm thinking...

The thru-hull gets drilled through the bottom of the hull, toward the transom. Does the pump have to be perfectly vertical? Should i get the pump with the angled thru-hull? So, the inlet is in... now i drill a hole in the side of the baitwell (toward the top), and seal it. Now water is pumping in, how does it get out? My thought here is to fabricate an upside down T out of 1" pvc. The horizontal section at one end would be sealed to the port in the bottom of the well, the other end would have a screw-on end plug. The vertical sectioin would extend up to a few inches below the lid, where i would either drill a bunch of holes in the sides of the pipe, or leave the top open and add a screen filter. So the water would be maintained at a certain level. The water that would pour in at this level would run down the vertical piece to the horizontal piece, and right out the existing port. To drain the well, i would have to unscrew the end-plug.

Does this sound reasonable, or am i way off base.

Thanks Guys,
Tim
_________________
1986 204C Overnighter
1999 Johnson 225 Ocean Pro
timo14 is offline   Reply With Quote
Old 08-23-2006, 06:28 PM
  #2    
Senior MemberCaptains Club Member
 
Join Date: Feb 2006
Location:
Posts: 281
Default RE: Aerator vs Livewell pump?

I'm far from an expert on the subject, but since my boat doesn't have a built-in live well, I ended up making a rig that works very well for me. I started with a heavy duty 30 gal plastic drum, cut a hole in the top and built a hinged lid from some scrap Azek trim. The drain is a piece of 1 1/4" PVC pipe that runs through the side wall of the drum and exits over the side of the boat. I debated how to run the intake as there are several ways that you can go. I ended up using an externally mounted rule pump that mounts on a bracket on the transom, eliminating the need for a thru- hull. It is exposed, but it is very simple and can be removed quickly if you don't need it. It is powered by a secondary battery through a timer switch that lets me vary the on/off cycle times. If you want to go the thru- hull route, using the built-in plastic thru-hull of a pump below the water line is not safe. You want to use a bronze thru-hull with a bronze sea cock and make sure both have straight threads and not tapered pipe threads.
capt. daddy is offline   Reply With Quote
 
Old 08-23-2006, 06:32 PM
  #3    
Senior MemberCaptains Club Member
 
Join Date: Aug 2006
Location: NJ
Posts: 658
Default Re: Aerator vs Livewell pump?

I'm no expert, but trust me.........I know from experience..........you DO NOT want to let the overflow water drain into anything. You want to plumb it out through the hull.

Can you say stinky?!?!?!
sixpack324 is offline   Reply With Quote
Old 08-23-2006, 06:34 PM
  #4    
Senior MemberCaptains Club Member
 
Join Date: Jul 2004
Location: Sarasota, FL
Posts: 2,458
Default Re: Aerator vs Livewell pump?

My Rule livewell pump lasted about eight months and the replacement Shurflo Piranha barely lasted five months. I replaced the Piranha with a Shurflo Bait Sentry 800 gph. and so far so good at four months. I would stay away from pumps that mount directly through the hull. You don't want a cheap piece of plastic as the only thing keeping water from flooding your boat.

• My bait sentry threads directly to a seacock in the bilge which allows me to stop the flow of water should the pump break off (the Rule broke in my hand when I was removing it). All holes below the waterline need to have a seacock. http://www.groco.net/images/seacocks...ks_BV_BVH.html The seacock is screwed or bolted to a block of marine plywood epoxied to the bottom of the hull in the bilge.

•There is a high speed scoop on the bottom the boat that threads directly to the seacock from the outside of the hull. Make sure to use plenty of marine sealant 3M 4200 works well. http://www.groco.net/images/fittings/STH-W-500-05.gif

•Run a hose from the livewell pump to the livewell (don't use the cheap ribbed plastic stuff). It should be attached to a spray head near the top of the well (through the well). Similar to this http://www.iboats.com/mall/image/ven...mall/38764.gif

•Most Livewells have a drain at the bottom and a stand pipe. This drain and hose must be large enough to keep up with the inlet hose. The hose drains overboard through a large thru-hull . http://www.groco.net/images/fittings...-ThruHull.html Some livewells drain at the top with a thru-hull instead of having a drain at the bottom.

I suggest that you visit a boat dealership and take a look at some livewell setups. Perhaps that will help clarify things.

Post some pictures of your boat and that will help us help you decide how to proceed.

__________________

2005 Sea Hunt 202, Honda BF150 2009 Toyota Tundra
HullSlap is offline   Reply With Quote
Old 08-23-2006, 08:10 PM
  #5    
Admirals Club
THT sponsor
 
Join Date: Aug 2005
Location: Venice, Florida
Posts: 15,111
Default Re: Aerator vs Livewell pump?

You can also use a ytransom mounted water pickup if you dont wantto drill a large hole through the bottom. You still have to drill a hole and bring the water in but it smaller and some are adjustable for water pressure. Look at the one Bobs Machine makes.
__________________
www.CoolWaterProducts.com
Rod Holder Flagpole with Valley Forge USA or Dive Flag combo sales. $10 off padded anchor bags, and much more.




Mr. Demeanor is offline   Reply With Quote
Old 08-23-2006, 10:25 PM
  #6    
Senior Member
 
Join Date: Aug 2004
Location: NC/GA
Posts: 4,788
Default Re: Aerator vs Livewell pump?

The pumps you're looking at are designed primarily to be transom mounted (they'll have a nut on the exterior), not a good choice for thru hull mounting. What you may be thinking about involves a scoop mounted thru the bottom, with a ball valve threaded onto that, with a pump somewhere upline from there. What pump to choose really depends on deadrise of the system, length of run to the well, and how much flow you want. Do some more surfing for installation diagrams ...
Curmudgeon is offline   Reply With Quote
Old 08-23-2006, 10:42 PM
  #7    
Senior Member
 
Join Date: Sep 2005
Location: Downtown Miami Florida
Posts: 344
Default Re: Aerator vs Livewell pump?

do you turn on your pumps once you put the bait in and leave them running all the time?? what is the lifespan of that??
I don't have high speed pickups so the only way for me to recirculate water is to have the pump running.
__________________
Intrepid 356 Cuddy
Twin Yamaha 250 Saltwater II
intreppy345 is offline   Reply With Quote
Old 08-24-2006, 09:02 AM
  #8    
Senior MemberCaptains Club Member
 
Join Date: Jun 2004
Location: Lake Norman&Shallotte NC
Posts: 436
Default Re: Aerator vs Livewell pump?

Quote:
HullSlap - 8/23/2006 7:34 PM

My Rule livewell pump lasted about eight months and the replacement Shurflo Piranha barely lasted five months. I replaced the Piranha with a Shurflo Bait Sentry 800 gph. and so far so good at four months. I would stay away from pumps that mount directly through the hull. You don't want a cheap piece of plastic as the only thing keeping water from flooding your boat.

• My bait sentry threads directly to a seacock in the bilge which allows me to stop the flow of water should the pump break off (the Rule broke in my hand when I was removing it). All holes below the waterline need to have a seacock. http://www.groco.net/images/seacocks...ks_BV_BVH.html The seacock is screwed or bolted to a block of marine plywood epoxied to the bottom of the hull in the bilge.

•There is a high speed scoop on the bottom the boat that threads directly to the seacock from the outside of the hull. Make sure to use plenty of marine sealant 3M 4200 works well. http://www.groco.net/images/fittings/STH-W-500-05.gif

•Run a hose from the livewell pump to the livewell (don't use the cheap ribbed plastic stuff). It should be attached to a spray head near the top of the well (through the well). Similar to this http://www.iboats.com/mall/image/ven...mall/38764.gif

•Most Livewells have a drain at the bottom and a stand pipe. This drain and hose must be large enough to keep up with the inlet hose. The hose drains overboard through a large thru-hull . http://www.groco.net/images/fittings...-ThruHull.html Some livewells drain at the top with a thru-hull instead of having a drain at the bottom.

I suggest that you visit a boat dealership and take a look at some livewell setups. Perhaps that will help clarify things.

Post some pictures of your boat and that will help us help you decide how to proceed.
Great Post
__________________
--------------------------------------
1973 Formula 233
Trim_tab is offline   Reply With Quote
Old 08-24-2006, 10:15 AM
  #9    
Senior MemberCaptains Club Member
 
Join Date: Apr 2002
Location: Vista, CA USA
Posts: 151
Default RE: Aerator vs Livewell pump?

Out here in Southern California we use a lot of live bait. I usually carry 2 "scoops" (about 2 bushels) of sardines or anchovies in a 42 gallon livewell on a typical offshore trip.

The "go to" guy out here for info on this topic is "Live Bait Larry" (forgot his last name). He was the originator of the polyethylene bait tanks sold by Kodiak and Aquaworld. His website is: http://www.livebaitlarry.com. He has lots of plumbing, sizing and other info at this address: http://www.livebaitlarry.com/tech_info.htm.

You can also check out: http://www.oceanskiffjournal.com/Sub...Livewells.aspx this might have additional information you can use.
Drydocked is offline   Reply With Quote
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Portable aerator pump battery usage question.. gkrangers The Boating Forum 10 06-17-2008 12:48 PM
Livewell aerator mugenman The Boating Forum 3 09-18-2006 07:28 AM
Converting a wash/livewell pump into an aerator? walden75 The Boating Forum 4 01-10-2006 11:19 AM
Aerator / Wash Down Pump rdsrb5 The Boating Forum 4 08-02-2004 07:03 AM
AERATOR VS. RECIRCULATING LIVEWELL. jsimpson SportFishing and Charters Forum 5 07-09-2004 07:24 PM

 



©2009 TheHullTruth.com

Powered by vBulletin® Version 3.7.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO 3.2.0